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Finding the Fourth Proportional to 893,651.84, 1,233,208.32 and 491,240.96

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Solution

The fourth proportional to 893,651.84, 1,233,208.32 and 491,240.96 is: 677,895.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,651.84 : 1,233,208.32 = 491,240.96 : x
  2. Step 2: Convert to fraction form
    893,651.84/1,233,208.32 = 491,240.96/x
  3. Step 3: Cross multiply
    893,651.84x = 1,233,208.32 × 491,240.96
  4. Step 4: Simplify right side
    893,651.84x = 605,802,438,996.79
  5. Step 5: Solve for x
    x = 605,802,438,996.79/893,651.84
  6. Step 6: Final answer
    x = 677,895.36

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.